RI
ETNB

RTW Investments’s 89bio ETNB Stock Holding History

RTW Investments’s Portfolio ETNB Stock Details ETNB Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2025
Q3 		– Sell
-1,967,527
Closed -$19.3M – 77
2025
Q2 		$19.3M Hold
1,967,527
– – 0.28% 50
2025
Q1 		$14.3M Sell
1,967,527
-5,510,534
-74% -$48.2M 0.22% 53
2024
Q4 		$58.5M Buy
7,478,061
+99,513
+1% +$819K 0.88% 32
2024
Q3 		$54.6M Hold
7,378,548
– – 0.79% 32
2024
Q2 		$59.1M Hold
7,378,548
– – 0.92% 32
2024
Q1 		$85.9M Buy
7,378,548
+1,799,617
+32% +$19.9M 1.27% 29
2023
Q4 		$62.3M Buy
+5,578,931
New +$51.3M 0.97% 29

Other funds holding ETNB

RCM
RA Capital Management Boston, Massachusetts $9.44B AUM 157.3% 1-Year Est. Return
PCM
Pentwater Capital Management Naples, Florida $19.3B AUM 58.13% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
DTC
Deep Track Capital Greenwich, Connecticut $6.12B AUM 144% 1-Year Est. Return
Adage Capital Partners
Adage Capital Partners Boston, Massachusetts $64.8B AUM 42.7% 1-Year Est. Return
SCM
Suvretta Capital Management New York $3.92B AUM 86.67% 1-Year Est. Return
Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
ACA
Avoro Capital Advisors New York $10.2B AUM 149.19% 1-Year Est. Return
GCL
Glazer Capital LLC New York $4.71B AUM 81.93% 1-Year Est. Return
Janus Henderson Group
Janus Henderson Group London, United Kingdom $209B AUM 37.72% 1-Year Est. Return

RTW Investments's ETNB Position: Q3 2025 in Review

RTW Investments sold out of 89bio (ETNB) in Q3 2025, closing a stake of 1,967,527 shares — an estimated $19.3M sold.

RTW Investments first reported a position in ETNB in Q4 2023 and held it in 7 quarters. The position peaked at $85.9M in Q1 2024. 198 funds tracked by Wall St. Rank hold ETNB as of Q3 2025.

  • RTW Investments reported no remaining 89bio position as of Q3 2025 after selling out during the quarter.
  • RTW Investments sold 1,967,527 89bio shares in Q3 2025, an estimated $19.3M.
  • RTW Investments first reported a position in 89bio in Q4 2023 and held it in 7 quarters.
  • RTW Investments's 89bio position peaked at $85.9M in Q1 2024.
  • 198 funds tracked by Wall St. Rank held 89bio as of Q3 2025.

Based on RTW Investments's 13F filing for Q3 2025, filed 14 Nov 2025.